WHAT ALL HAPPENED JULY TO SEPTEMBER 1940
Find out what all happened July to September 1940

World War II: Battle of Britain – The German Luftwaffe begins attacking British convoys in the English Channel thus starting the battle (this start date is contested, though). (10. July 1940)

General Henri Guisan orders the Swiss Army to resist German invasion and makes surrender illegal. (25. July 1940)

First flight of the B-25 Mitchell medium bomber. (19. August 1940)

Estonia was illegally annexed by the Soviet Union. (6. August 1940)

Doodlebug Disaster: A doodlebug train in Cuyahoga Falls, Ohio collides with a multi-car freight train heading in the opposite direction, killing 43 people. (31. July 1940)

Ip Massacre: The Hungarian Army, supported by local Hungarians, kill 158 Romanian civilians in Ip, Sălaj, a village in Northern Transylvania, as part of attempts to ethnic cleansing. (14. September 1940)

World War II: the United Kingdom and the Vichy France government break off diplomatic relations. (5. July 1940)

The animated short A Wild Hare is released, introducing the character of Bugs Bunny. (27. July 1940)

The "Aufbau Ost" directive is signed by Wilhelm Keitel. (8. August 1940)

The United States' Under Secretary of State Sumner Welles issues a declaration on the U.S. non-recognition policy of the Soviet annexation and incorporation of three Baltic states: Estonia, Latvia and Lithuania. (23. July 1940)

The British liner SS City of Benares is sunk by German submarine U-48; those killed include 77 child refugees. (18. September 1940)

World War II: Italian forces begin the invasion of British Somaliland. (3. August 1940)

Indian independence leader Subhas Chandra Bose is arrested and detained in Calcutta. (2. July 1940)

Witold Pilecki is voluntarily captured and sent to Auschwitz in order to smuggle out information and start a resistance. (19. September 1940)

George Stibitz pioneers the first remote operation of a computer. (9. September 1940)

World War II: the Vichy government is established in France. (10. July 1940)

British Prime Minister Winston Churchill makes the fourth of his famous wartime speeches, containing the line "Never was so much owed by so many to so few". (20. August 1940)

An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200. (12. September 1940)

Pennsylvania Central Airlines Trip 19 crashes near Lovettsville, Virginia. The CAB investigation of the accident is the first investigation to be conducted under the Bureau of Air Commerce act of 1938. (31. August 1940)

World War II: Alsace-Lorraine is annexed by the Third Reich. (7. August 1940)